After suddenly awakening the ability to foresee other people's futures, Sakurai Sakura first sees the despairing future of Sayuri Amuro, the class's popular idol.
After being confessed to by a bullied boy, she ends up with a useless husband. It's the sort of plot you'd find in a yellow-haired bully's doujin.
To save the gentle, adorable Sayuri, I'll confess to her myself and make her my girlfriend!
After that, I'll use this ability to change the fate of one girl after another.
[Pure romance, no more harem. The girls will each have their own couples.]